linux-kernel - Re: Post-merge-window ping (Re: [PATCH v4 0/5] x86: two-phase syscall tracing and seccomp fastpath)

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Message-ID: <CAMEtUuwZPn+hY6BTz6jj+TJHFWjhyOVFZGj_Brw9DE9YjiTbrQ@mail.gmail.com>
Date:	Tue, 26 Aug 2014 18:45:06 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kees Cook <keescook@...omium.org>,
	Will Drewry <wad@...omium.org>,
	Oleg Nesterov <oleg@...hat.com>, X86 ML <x86@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Linux MIPS Mailing List <linux-mips@...ux-mips.org>,
	linux-arch <linux-arch@...r.kernel.org>,
	LSM List <linux-security-module@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: Post-merge-window ping (Re: [PATCH v4 0/5] x86: two-phase syscall
 tracing and seccomp fastpath)

On Tue, Aug 26, 2014 at 6:32 PM, Andy Lutomirski <luto@...capital.net> wrote:
> On Mon, Jul 28, 2014 at 8:38 PM, Andy Lutomirski <luto@...capital.net> wrote:
>> This applies to:
>> git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git seccomp-fastpath
>>
>> Gitweb:
>> https://git.kernel.org/cgit/linux/kernel/git/kees/linux.git/log/?h=seccomp/fastpath
>
> Hi all-
>
> AFAIK the only thing that's changed since I submitted it is that the
> 3.17 merge window is closed.  Kees rebased the tree this applies to,
> but I think the patches all still apply.  What, if anything, do I need
> to do to help this along for 3.18?
>

+1
I think it's not just an optimization of seccomp path, but I feel
in the future it will help me speedup syscall tracepoints which
are quite slow right now comparing to kprobes...
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